Here’s what kidney cancer means.

Renal cortical tumours, the precursor to kidney cancer, occur when normally functioning cells in one or both kidneys undergo a malignant transformation and grow uncontrollably. Cancerous tumours are the worst kind, although slow-growing tumours are still a possibility. 

As its name implies, a malignant tumour is cancerous and has the potential to metastasize. Although indolent tumours are malignant, metastasis to other regions of the body is uncommon. When a tumour is considered benign, it can still grow but will not metastasize. Consult a kidney cancer hospital to know motre about it and to avail the best treatment.

What are the types of kidney cancer cells?

It is helpful for doctors for kidney disease to know what kind of cells make up a kidney tumour. Pathologists have identified more than 30 subtypes of kidney cancer cells. A pathologist is a medical specialist who focuses on making diagnoses through the examination of cells, tissues, and organs. 

The distinction between benign, indolent, and malignant renal cortical tumours is not always clear prior to surgery, even with the help of computed tomography (CT) scans or magnetic resonance imaging (MRI).

The following are the most common kidney cancer cell types. In most cases, tumour grade has nothing to do with growth rate but the degree to which the tumour cells have differentiated. The degree to which malignant cells have differentiated to mimic normal ones is measured. The higher the grade, the greater the likelihood that the cells may develop metastasis.

Clear cells:

Clear cells account for over 70% of all kidney malignancies. There is a spectrum of clear cell growth rates, from very slow (grade 1) to extremely rapid (grade 4). Therapeutic options for clear cell kidney carcinoma include immunotherapy and targeted treatment.


Ten per cent to fifteen per cent of kidney malignancies are papillary. There are two subtypes of it; we name them type 1 and type 2. Surgery is frequently used to treat localized papillary kidney carcinoma. Blood artery blocking medications are commonly used to treat metastatic papillary kidney carcinoma. Immunotherapy is now being studied as a potential treatment for patients with metastatic papillary malignancies.

Sarcomatoid features:

Many microscopic features of kidney cancer tumours, including clear cell, chromophobe, and papillary, can be chaotic. It is common for pathologists to use the term “sarcomatoid” to characterize these. Although not technically a tumour subtype, these characteristics alert oncologists that the patient is dealing with an extremely dangerous kind of kidney cancer. Reach out to the best oncologist for kidney cancer to make sure you receive the best treatment.

The staging of kidney cancer includes:

Kidney cancer specialists will determine if and how far cancer has spread after making a kidney cancer diagnosis. Staging is the term for what is happening here. The extent to which cancer has spread throughout the body is indicated by the stage at which it is diagnosed. As a result, cancer’s severity and renal cancer treatment options can be better established. The stage of malignancy is also used by doctors when discussing prognosis.

Kidney cancer can be diagnosed at any of the four (4) different stages (4). If the number is modest, cancer has not spread too far. To put it simply, the more advanced the stage number, such as IV, the more widespread the disease has become. 

Furthermore, within a stage, a lower letter (or number) indicates a more novice level. Although every case of cancer is different, there are commonalities in the outlook and treatment of malignancies at the same stage.

TNM staging system:

Doctors use the TNM classification system as a tool for describing the stage. Diagnostic testing and imaging scans help doctors address the following concerns:

Tumour (T):

Just how big is the initial tumour? To put it another way: where is it exactly?

Node (N):

Is the tumour affecting nearby lymph nodes? In such a case, where and how many?

Metastasis (M):

Can you identify any other areas where cancer may have metastasized? To what extent and where would that cost?

The major stages of kidney cancer includes:

Stage 1: 

A tumour the size of a baseball is growing inside your kidney, and it’s cancer. There has been no spread to the lymph nodes or other parts of your body.

Stage 2: 

The kidney tumour you have is larger than 7 cm in diameter. There has been no spread to the lymph nodes or other parts of your body.

Stage 3:

Several possible configurations of tumour size and location characterize this phase. If your cancer has progressed to stage III, it has invaded a major vein (renal or vena cava, for instance), surrounding tissue, or lymph nodes.

Stage 4:

Even this is composed of several permutations: Multiple possible configurations of tumour size and location characterize this stage. No matter how small the original tumour was, it is considered stage IV if it has spread to other organs outside the lymph nodes. 

Cases of stage IV cancer have progressed to other organs but have not reached any lymph nodes in the area. Or, a tumour of stage IV could break through the thin sac that encases each kidney (Gerota’s fascia), or it could invade the adrenal gland directly above the kidney.

The treatment for kidney cancer can include:

Below, we’ll go through some of the most prevalent approaches to treating kidney cancer. Treatment for symptoms and side effects is crucial to your overall cancer care plan.


Cancerous tumours and sometimes some healthy tissue around them are removed surgically. Cancer can be eradicated with surgical removal of the tumour if it has not gone beyond the kidneys. During surgery to remove the tumour, doctors may have to remove the affected area of the kidney and potentially some surrounding tissue and lymph nodes.

Targeted therapy:

Specific genes, proteins, or the surrounding tissue milieu that fosters cancer growth and survival are the targets of targeted therapies. This therapy prevents cancer cells from dividing and spreading while minimizing their impact on healthy tissue.

Tumours can’t always be treated with the same. Scientific investigations into the nature of specific molecular targets and the development of novel therapies aimed at these targets continue to yield fresh insights.


Immunotherapy boosts your immune system’s capacity to attack cancer cells, thereby relying on your body’s natural defences. Reach out to a kidney specialist in Coimbatore to undergo if you have any signs of kidney cancer.


Chemotherapy refers to the use of medications to kill cancer cells, typically by preventing them from thriving and replicating.

The number of cycles of chemotherapy and the duration during which they are administered constitutes the standard chemotherapy regimen or schedule. A patient may take a single medication at a time or receive multiple medications at once.

Radiation therapy:

Radiation kidney tumour treatment aims to eradicate cancer cells by exposing them to high-energy x-rays or other particles. Radiation oncologists are cancer specialists who administer radiation therapy.

Kidney cancer is resistant to radiation therapy; hence it cannot be used as a primary treatment. It can boost the efficacy of systemic therapy for kidney cancer but is rarely used alone.

The benefits of staging kidney cancer can include:

In doing so, cancer’s severity and treatment options can be better established. Kidney cancer specialists also refer to the stage of cancer when discussing prognosis. Kidney cancer can progress through four stages, from I (1) to IV (4).